Cage for antifriction-bearings.



F. BALTZER.

GAGE FOR ANTIPRIGTION BEARINGS. urmou'xon rum) no'v. 12, mos.

Patented Oct. 20. 1914.

I UNITED STATES- PATENT Y FRIEDRICH BALTZER, or BERLIN, GERMANY; I

cncn For. Aivrrrn rcrion-rnnnr ves.-'

Specification of Letters iatent. Patented Oct. .20., 1914:- Application filed November 12, 1308. 7 Serial 110 462,293.

Z '0 all whom it may concern I Be it known that I, FRIEDRICH BAL'rznR, a subject of the Emperor of Germany, residing at Berlin, Germany, have invented certain new and useful Improvements in Cages for Antifriction-Bearings, of which the following is a specification, reference being had therein to the accompanying drawing- I This invention relates to anti friction bearings in which the rolling members are mounted between casing elements, and has reference more particularly to the .form and construction of the cage or spacing-device usually employed to maintain the roll.- ing members in spacedrelations, and embodying usually a ring or support equipped with ball holding members, p

The invention consists of various features of novelty, directed to the production of a light and inexpensive cage; to the formation of the holding members so that they may be detachably interlocked with the support,

1 and capable each of holding a single ball independently of the other members; to the construction of the members of a material to adapt them by deformation to resiliently hold the balls and be detachably connected with the ring or support; to the con-.

struction of the holding members from a single piece of material; and to various other features of construction, which will be described in the specification, and their novel parts pointed out in the claims.

Referring to the drawings: Figure 1 is a plan view of a bearing equipped with a spacing cage constructed in accordance with my invention in its preferred form. Fig. 2 is a plan view of the cake removed from the bearing, with certain of the rolling members in position, and others removed, and with certain of the holding members omitted to show the means for detachably confining them in place on the support. Fig. 3 is a side elevation of a portion of said cage. Fig. 4 is a side elevation partly in section of a portion of a modified form of the cage.

In the accompanying drawing: In its preferred form, as illustrated in Figs. 1, 2 and 3, my improved cage comprises a supporting ring a adapted to fit in between theinner and outer casing elements 1 and 2 respectively of the bearing, and a series of ball holding members fastened to said support, and formed each with opposing holding or clamping fingers 4, between which the balls are embraced. ,1

each holdin ring,

members.

on the supporting ring by means of lips or clips 6, projecting from the opposite edges holding 'members' are formed ieaoh of the ring and bent inwardly and downwardly on the base or body portion of the U-shaped member, the limbs of the same being bent inwardly-on the balls,' as shown, to holdthem in position. WAS a result, ,the

ilimbs of the U-shaped member practically surround theent'i're surface'of the ball, which is thus held firmly but resiliently, with a spring pressure between the limbs. F rom this construction it will be "observed that pendently of. the other, sothatby setting the member retains its ball inde several membersclose together around .the

as shown, the balls may be arranged very close together and nearly the full complement used. Furthermore, it will be observed that by reason of the manner of fas-' tening' the loops to the supporting ring, they be readily and individually detached without the necessity. of employing special tools, it being only necessary to bendtbe confining lips e upwardlyto release. the

to replace a worn or injured clamping memher, and by reason of the fact that each mem- This is of advantage and im-v portance in the event of its being desirable her holds its ball independently of the other,

the removal of one will release but the one ball, the other balls being undisturbed.

By forming the holding membersof a deformable material, that is, a material adapted to be bent tochangeits form, theymay be so interlocked with the ring, as in the manner shown, that their independent movement may be effected at willand without the use of special tools suchas would be necessary if the holding members were riveted to the ring. I

In the modified construction shown in Fig. 4 the ball holding members do not embody opposing holding fingers, but one finger l wbeing employed, one end of which is bent around the partial circumference of i the ball to confine the same, while its opposite end is bent laterally to form a foot 4, which is seated on the supportingring and removably fastenedinplace by a single I I lip e projecting from the'edge of the ring and bent inwardly and downwardly onthe foot.

In setting up or assembling the, parts of the -bearing,'the cage and balls are assembled in the casing elements with the holding members in an unfinished formrepresented in Figs. 3 and 4, whereupon these unbent portions of the holding members are, by

character of material used in the formation of the members, which when bent down as described, to embracetheiballs, will hold them resiliently and with a springpressure. While the invention is shown applied to a radial bearing, it maybe employed also in connection with thrust-bearings, without material change'in operation or function.

It is to be understood that the invention is not limited 'to any specific formfor arrangement of; the parts, except in so far as such limitations are specified in the claims. Having thus described my invention, what I claim is:

'1. A ball holdingcage for ball bearings I compris1ng,;.1n combination, arlsupporting posing confining lips, and a series of ball holding members seated on the ring and confined respectively by the opposing lips.

3. A cage for ball bearings composed of a ring insertible 1n aball race, a plurality oi 35 f resilient fingers havingbody portions bearmg on said ring, balls disposed in said fingers, and clipsengaging said fingers and securingtthem tosaidring, said clips ens gagn gjopposite edges of the body portions 40 of sand fingers.

In testimony whereofl aflix my signature I inpresence oftwo witnesses.

FRIEDRICH BALTZER.

Witnesses VOLDEMAR H-Aorr, IIENRY HASPER.

Copies of thispatent may be obtained forfive cents each, by addressing the Commissioner of Iatents,

\ Washington, D. G. 

